\documentclass{article}
\usepackage[T2A]{fontenc}
\usepackage[cp1251]{inputenc}
\usepackage[english,bulgarian]{babel}
\usepackage{color}
\usepackage{pst-pdf}
\usepackage{pstricks,pst-node,pst-text,pst-grad,pst-fill,pst-eucl}
\usepackage{pifont}
\newpsstyle{gridstyle}{subgriddiv=0,gridcolor=lightgray,griddots=10,gridlabels=7pt}

\begin{document}
\pagestyle{empty}
\psset{unit=1cm}
\begin{pspicture}[showgrid=false](0,0)(15.5,5)

%рамки
\psset{linewidth=1.5pt}
\rput(7,4){\multido{\rA=0+0.5,\iB=15+-1}{16}{\rput(\rA,0){\psframe(0.5,0.5)\rput(0.25,0.25){\iB}}}}
\rput(7,3.2){\multido{\rA=0+0.5}{12}{\rput(\rA,0){\rput(0.25,0.25){\ding{58}}}}}
\multirput(13.25,3.75)(0.5,0){4}{\psline{->}(0,0)(0,-2.2)}
\rput(5,2.5){\multido{\rA=0+0.5,\iB=15+-1}{16}{\rput(\rA,0){\psframe(0.5,0.5)\rput(0.25,0.25){\iB}\rput(0.25,-0.25){\psline{->}(0,-0.7)}}}}
\rput(5,0.8){\multido{\rA=0+0.5,\iB=19+-1}{20}{\rput(\rA,0){\psframe(0.5,0.5)\rput(0.25,0.25){\iB}}}}

%\multido{\iA=0+10,\iB=19+-1}{8}{\rput(\iA,0){\psframe(5,5)\rput(5,5){\iB}}}%8 квадратни рамки с размери 1 см и числа от 19 надолу

\rput(4.3,4.3){\parbox{4cm}{
\begin{center}\large
16-битов индексен регистър
\end{center}
}}
\rput(2.5,2.65){\parbox{4cm}{
\begin{center}\large
16-битов сегментен регистър
\end{center}
}}
\rput(2.5,1.1){\parbox{4cm}{
\begin{center}\large
20-битов адрес
\end{center}
}}


\end{pspicture}
\end{document}
